CN109765730B - Alignment film manufacturing method and alignment film - Google Patents
Alignment film manufacturing method and alignment film Download PDFInfo
- Publication number
- CN109765730B CN109765730B CN201910205041.7A CN201910205041A CN109765730B CN 109765730 B CN109765730 B CN 109765730B CN 201910205041 A CN201910205041 A CN 201910205041A CN 109765730 B CN109765730 B CN 109765730B
- Authority
- CN
- China
- Prior art keywords
- region
- alignment film
- substrate
- area
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a manufacturing method of an alignment film and the alignment film. The manufacturing method of the alignment film provided by the invention provides the substrate with the first area, the second area and the third area which are sequentially arranged from inside to outside, when the alignment film solution is subjected to ink-jet printing on the substrate, the single drop amount of the alignment film solution subjected to ink-jet printing on the first area is smaller than that of the alignment film solution subjected to ink-jet printing on the second area, and the single drop amount of the alignment film solution subjected to ink-jet printing on the first area is larger than that of the alignment film solution subjected to ink-jet printing on the third area, so that the alignment film with a smaller halo area size and higher thickness uniformity is formed on the substrate, and the elimination of peripheral brightness unevenness is facilitated.
Description
Technical Field
The invention relates to the technical field of display, in particular to a manufacturing method of an alignment film and the alignment film.
Background
however, as is well known, the lcd is a passive light emitting device, and the liquid Crystal material itself does not emit light, so most of the lcds in the existing market are backlight type lcds, which include an lcd panel and a backlight module.
the liquid Crystal display panel generally comprises a Color Filter (CF) substrate, a Thin Film Transistor (TFT) array substrate, a liquid Crystal (L liquid Crystal, L C) sandwiched between the Color Filter substrate and the TFT array substrate, and a Sealant frame (Sealant).
At present, in a middle-section box-forming process of a liquid crystal display panel, a layer of alignment film (PI, i.e., polyimide) is usually first fabricated on a Thin Film Transistor (TFT) array substrate and a Color Filter (CF) substrate, then a sealant is coated on the thin film transistor array substrate and liquid crystal is dropped into the sealant, the thin film transistor array substrate and the color filter are attached in a vacuum state, and finally the sealant is cured by ultraviolet irradiation to complete the packaging of the thin film transistor array substrate and the color filter.
The existing methods for manufacturing the alignment film mainly include two methods, one is to use a Printing plate to transfer the alignment film, the other is to manufacture the alignment film by a coating method of ink jet Printing (Inkjet Printing), the alignment film is manufactured by ink jet Printing without the need of the Printing plate, the pattern is directly input into a computer, and the alignment film solution is sprayed onto the substrate by a group of spray heads, so that the equipment structure is simple, and the cost is greatly saved. Referring to fig. 1, when the alignment layer is manufactured by inkjet printing, when the solution of the alignment layer is inkjet printed on the region 110 of the substrate 100 where the alignment layer is to be formed, the amount of the single drop of the solution of the alignment layer at different positions in the region 110 where the alignment layer is to be formed is the same (generally 85ng), referring to fig. 2, after the alignment layer solution is inkjet printed on the substrate 100, a halo (halo) region 210 with non-uniform thickness is formed at the edge of the alignment layer 200 under the action of surface tension, the halo region 220 includes a first portion a and a second portion B sequentially disposed along the edge away from the alignment film 200, wherein the upper surface of the first portion a protrudes away from the substrate 100, the thickness of the region where the first portion a has the largest thickness is greater than the thickness of the alignment film 200 located outside the halo region 220, and the thickness of the second portion B is less than the thickness of the alignment film 200 located outside the halo region 220. Due to the existence of the halo region, the topography of the surface of the alignment film is not uniform, so that the distribution of the liquid crystal on the surface of the alignment film is disordered, the pretilt angle of the liquid crystal corresponding to the halo region is different from that of other regions, meanwhile, the transmittance of the alignment film is different due to different film thicknesses of the alignment film, and the two factors cause the brightness of the halo region to be inconsistent with that of other regions during display, so that the peripheral brightness unevenness (mura) is generated.
Disclosure of Invention
The invention aims to provide a manufacturing method of an alignment film, which can reduce the size of a halo area of the alignment film, improve the uniformity of the thickness of the alignment film and help to eliminate the peripheral brightness unevenness.
Another objective of the present invention is to provide an alignment film with a small halo region and a high thickness uniformity, which is helpful for eliminating the brightness unevenness around the display panel.
In order to achieve the above object, the present invention first provides a method for manufacturing an alignment film, comprising the following steps:
Step S1, providing a substrate;
The substrate comprises a first area, a second area positioned outside the first area and a third area positioned outside the second area;
And step S2, performing ink jet printing on the alignment film solution to the substrate, wherein the single drop amount of the alignment film solution for ink jet printing to the first area is less than that of the alignment film solution for ink jet printing to the second area, and the single drop amount of the alignment film solution for ink jet printing to the first area is greater than that of the alignment film solution for ink jet printing to the third area, so that the alignment film is formed on the substrate.
The alignment film comprises a central area and a halo area positioned outside the central area, wherein the halo area comprises a first part and a second part which are sequentially arranged along the direction far away from the central area; the thickness of the first part is smaller than that of the central area, and the upper surface of the first part is concave towards the direction close to the substrate; an upper surface of the second portion protrudes in a direction away from the substrate; the second part is located on the third area of the substrate, the first part is located on the second area of the substrate, and the projection of the boundary of the halo area and the central area in the vertical direction is located in the second area.
In the step S2, an alignment film solution is inkjet printed to the first region, the second region, and the third region in sequence.
In the step S2, the single drop amount of the alignment film solution is 45-85ng by ink-jet printing to the first area; the single drop amount of the alignment film solution is 85-125ng after ink-jet printing to the second area; and the single drop amount of the alignment film solution is 30-60ng in the ink-jet printing process to the third area.
In the step S2, the amount of a single drop of the alignment film solution is 85 ng; the single drop amount of the alignment film solution is 124ng after ink-jet printing to the second area; the amount of a single drop of the alignment film solution was inkjet printed to the third area to be 60 ng.
The distance between the edges of the first area and the third area far away from the first area is 1-3 mm.
The distance between the edges of the second area and the third area far away from the first area is 0.1-0.3 mm.
The substrate is a thin film transistor array substrate or a color film substrate.
The alignment film solution is a polyimide solution.
The invention also provides an alignment film, which is prepared by the preparation method of the alignment film; the alignment film comprises a central area and a halo area positioned outside the central area, wherein the halo area comprises a first part and a second part which are sequentially arranged along the direction far away from the central area; the thickness of the first part is smaller than that of the central area, and the upper surface of the first part is concave towards the direction close to the substrate; an upper surface of the second portion protrudes in a direction away from the substrate; the second part is located on the third area of the substrate, the first part is located on the second area of the substrate, and the projection of the boundary of the halo area and the central area in the vertical direction is located in the second area.
The invention has the beneficial effects that: the manufacturing method of the alignment film provided by the invention provides the substrate with the first area, the second area and the third area which are sequentially arranged from inside to outside, when the alignment film solution is subjected to ink-jet printing on the substrate, the single drop amount of the alignment film solution subjected to ink-jet printing on the first area is smaller than that of the alignment film solution subjected to ink-jet printing on the second area, and the single drop amount of the alignment film solution subjected to ink-jet printing on the first area is larger than that of the alignment film solution subjected to ink-jet printing on the third area, so that the alignment film with a smaller halo area size and higher thickness uniformity is formed on the substrate, and the elimination of uneven peripheral brightness is facilitated. The alignment film has a small halo area and high thickness uniformity, and is beneficial to eliminating uneven peripheral brightness.
Drawings
For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration and description and are not intended to limit the invention.
In the drawings, there is shown in the drawings,
FIGS. 1 and 2 are schematic diagrams illustrating an alignment film formed by ink-jet printing according to the prior art;
FIG. 3 is a flow chart of a method for fabricating an alignment film according to the present invention;
FIG. 4 is a diagram illustrating step S1 of the method for fabricating an alignment film according to the present invention;
Fig. 5 is a schematic diagram of step S2 of the method for manufacturing an alignment film according to the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Referring to fig. 3, the present invention provides a method for manufacturing an alignment film, including the following steps:
In step S1, please refer to fig. 4, a substrate 10 is provided.
The substrate 10 includes a first region 11, a second region 12 located outside the first region 11, and a third region 13 located outside the second region 12.
Specifically, the substrate 10 may be a thin film transistor array substrate or a color film substrate, that is, the present invention may be used to fabricate an alignment film on the thin film transistor array substrate side or on the color film substrate side.
Step S2, ink-jet printing the alignment layer solution onto the substrate 10, wherein the amount of the single drop of the alignment layer solution ink-jet printed onto the first region 11 is smaller than the amount of the single drop of the alignment layer solution ink-jet printed onto the second region 12, and the amount of the single drop of the alignment layer solution ink-jet printed onto the first region 11 is larger than the amount of the single drop of the alignment layer solution ink-jet printed onto the third region 13, so as to refer to fig. 5, and form the alignment layer 20 on the substrate 10.
Specifically, referring to fig. 5, the alignment film 20 includes a central region 21 and a halo region 22 located outside the central region 21, the halo region 22 includes a first portion 221 and a second portion 222 sequentially disposed along a direction away from the central region 21, a thickness of the first portion 221 is smaller than a thickness of the central region 21, an upper surface of the first portion 221 is recessed toward the substrate 10, an upper surface of the second portion 222 protrudes toward the direction away from the substrate 10, the second portion 222 is located on the third region 13, the first portion 221 is located on the second region 12, and a vertical projection of a boundary between the halo region 22 and the central region 21 is located in the second region 12.
Specifically, in step S2, the amount of the single drop of the alignment layer solution is 45 ng to 85ng by inkjet printing to the first region 11, the amount of the single drop of the alignment layer solution is 85ng to 125ng by inkjet printing to the second region 12, and the amount of the single drop of the alignment layer solution is 30 ng to 60ng by inkjet printing to the third region 13.
Preferably, in step S2, the amount of the single drop of the alignment film solution is 85ng for inkjet printing to the first region 11, 124ng for inkjet printing to the second region 12, and 60ng for inkjet printing to the third region 13.
Specifically, in step S2, an alignment film solution is inkjet printed to the first region 11, the second region 12, and the third region 13 in sequence.
Preferably, the distance between the first region 11 and the edge of the third region 13 far away from the first region 11 is 1-3 mm. The distance between the edges of the second region 12 and the third region 13 remote from the first region 11 is 0.1-0.3 mm.
Specifically, the alignment film solution is a polyimide solution.
It should be noted that in the method for manufacturing an alignment film provided by the present invention, when the alignment film solution is inkjet printed on the substrate 10, the amount of the single drop of the alignment film solution inkjet printed on the first region 11 is controlled to be smaller than the amount of the single drop of the alignment film solution inkjet printed on the second region 12, and the amount of the single drop of the alignment film solution inkjet printed on the first region 11 is controlled to be larger than the amount of the single drop of the alignment film solution inkjet printed on the third region 13, the amount of the single drop of the alignment film solution inkjet printed on the first region 11 can be consistent with the uniform amount of the single drop set in the prior art when the alignment film solution is inkjet printed on the second region 12, and the amount of the alignment film solution inkjet printed on the first region 11 is controlled to be smaller than the amount of the alignment film solution inkjet printed on the second region 12, so that the amount of the alignment film solution in the second region 12 is larger than the amount of the alignment film solution in the first region 11, thereby increasing the thickness of the thin film portion in the prior art, the dimension of the halo region 22 of the alignment film 20 to be finally formed is smaller than that of the prior art, so that the single drop amount of the alignment film solution which is subjected to ink-jet printing to the first region 11 is larger than that of the alignment film solution which is subjected to ink-jet printing to the third region 13, the thickness of the second part 222 in the halo region 22 can be reduced, the thickness of the region with the largest thickness of the second part 222 is enabled to be consistent with the thickness of the alignment film 20 outside the halo region 22, the film thickness difference of the alignment film 20 is effectively reduced, the uniformity of the thickness of the alignment film 20 is improved, the nonuniform pre-tilt angle distribution caused by the nonuniform liquid crystal distribution due to the nonuniform thickness of the alignment film 20 is eliminated, the difference of the penetration rate caused by the nonuniform thickness of the alignment film 20 is eliminated, the brightness difference is reduced through the two points, and the peripheral brightness nonuniformity of the liquid crystal display panel manufactured by the alignment is effectively improved, the quality of the product is improved.
Referring to fig. 5, based on the same inventive concept, the present invention further provides an alignment film manufactured by the method, where the alignment film 20 includes a central area 21 and a halo area 22 located outside the central area 21, the halo area 22 includes a first portion 221 and a second portion 222 sequentially disposed along a direction away from the central area 21, a thickness of the first portion 221 is smaller than a thickness of the central area 21, an upper surface of the first portion 221 is recessed toward a direction close to the substrate 10, an upper surface of the second portion 222 protrudes toward a direction away from the substrate 10, the second portion 222 is located on a third area 13 of the substrate 10, the first portion 221 is located on the second area 12 of the substrate, and a projection of a boundary between the halo area 22 and the central area 21 in a vertical direction is located in the second area 12.
It should be noted that the alignment film of the present invention is prepared by the above-mentioned method, when the alignment film solution is inkjet printed on the substrate 10, the amount of the single drop of the alignment film solution inkjet printed on the first region 11 is controlled to be smaller than the amount of the single drop of the alignment film solution inkjet printed on the second region 12, and the amount of the single drop of the alignment film solution inkjet printed on the first region 11 is controlled to be larger than the amount of the single drop of the alignment film solution inkjet printed on the third region 13, the amount of the single drop of the alignment film solution inkjet printed on the first region 11 can be consistent with the uniform amount of the single drop set when the alignment film solution is inkjet printed on the first region 11 in the prior art, and the amount of the alignment film solution inkjet printed on the first region 11 is controlled to be smaller than the amount of the alignment film solution inkjet printed on the second region 12, so that the amount of the alignment film solution in the second region 12 is larger than the amount of the alignment film solution in the first region 11, the thickness of the thinner film part in the halo region in the prior art can be increased, the size of the halo region 22 of the alignment film 20 to be finally formed is smaller than that in the prior art, the amount of a single drop of the alignment film solution which is ink-jet printed to the first region 11 is larger than that of a single drop of the alignment film solution which is ink-jet printed to the third region 13, the thickness of the second part 222 in the halo region 22 can be reduced, the thickness of the region with the largest thickness of the second part 222 is consistent with the thickness of the alignment film 20 outside the halo region 22, the film thickness difference of the alignment film 20 is effectively reduced, the uniformity of the thickness of the alignment film 20 is improved, the nonuniform pretilt angle distribution caused by nonuniform liquid crystal distribution due to nonuniform thickness of the alignment film 20 can be eliminated, the difference of penetration rate caused by nonuniform thickness of the alignment film 20 can be eliminated, the brightness difference is reduced through the two points, and the peripheral brightness nonuniformity of the liquid crystal display panel made of the alignment film is effectively improved, the quality of the product is improved.
In summary, the method for manufacturing an alignment film provided by the present invention provides a substrate having a first region, a second region and a third region sequentially arranged from inside to outside, when an alignment film solution is inkjet printed on the substrate, a single drop amount of the alignment film solution is inkjet printed on the first region is smaller than a single drop amount of the alignment film solution is inkjet printed on the second region, and a single drop amount of the alignment film solution is inkjet printed on the first region is larger than a single drop amount of the alignment film solution is inkjet printed on the third region, so that an alignment film with a small halo region size and high thickness uniformity is formed on the substrate, which is helpful for eliminating peripheral brightness unevenness. The alignment film has a small halo area and high thickness uniformity, and is beneficial to eliminating uneven peripheral brightness.
As described above, it will be apparent to those skilled in the art that other various changes and modifications may be made based on the technical solution and concept of the present invention, and all such changes and modifications are intended to fall within the scope of the appended claims.
Claims (9)
1. A manufacturing method of an alignment film is characterized by comprising the following steps:
Step S1, providing a substrate (10);
The substrate (10) comprises a first region (11), a second region (12) located outside the first region (11), and a third region (13) located outside the second region (12);
Step S2, carrying out ink jet printing on the alignment film solution to the substrate (10), wherein the single drop amount of the alignment film solution for ink jet printing to the first area (11) is smaller than that of the alignment film solution for ink jet printing to the second area (12), and the single drop amount of the alignment film solution for ink jet printing to the first area (11) is larger than that of the alignment film solution for ink jet printing to the third area (13), so that the alignment film (20) is formed on the substrate (10);
In the step S2, the single drop amount of the alignment film solution is 45-85ng by ink-jet printing to the first area (11); the single drop amount of the alignment film solution is 85-125ng after ink-jet printing to the second area (12); the amount of a single drop of the alignment film solution is 30-60ng ink-jet printed to the third region (13).
2. The method according to claim 1, wherein the alignment film (20) comprises a central region (21) and a halo region (22) located outside the central region (21), the halo region (22) comprising a first portion (221) and a second portion (222) sequentially arranged in a direction away from the central region (21); the thickness of the first portion (221) is smaller than that of the central region (21), and the upper surface of the first portion (221) is recessed toward the direction close to the substrate (10); the upper surface of the second portion (222) protrudes in a direction away from the substrate (10); the second portion (222) is located on a third region (13) of the substrate (10), the first portion (221) is located on a second region (12) of the substrate, and a projection of a vertical direction of a boundary of the halo region (22) and the central region (21) is located within the second region (12).
3. The method of claim 1, wherein in step S2, an alignment film solution is inkjet printed onto the first region (11), the second region (12), and the third region (13) in sequence.
4. The method of claim 1, wherein in step S2, the amount of single drop of the alignment film solution is 85ng when the first region (11) is subjected to inkjet printing; the amount of a single drop of the alignment film solution is jet-printed to the second area (12) is 124 ng; the amount of a single drop of the alignment film solution ink-jet printed to the third region (13) was 60 ng.
5. The method for manufacturing an alignment film according to claim 1, wherein the distance between the edges of the first region (11) and the third region (13) far away from the first region (11) is 1-3 mm.
6. The method for manufacturing an alignment film according to claim 5, wherein the distance between the edges of the second region (12) and the third region (13) far away from the first region (11) is 0.1-0.3 mm.
7. The method for manufacturing an alignment film according to claim 1, wherein the substrate (10) is a thin film transistor array substrate or a color film substrate.
8. The method according to claim 1, wherein the alignment layer solution is a polyimide solution.
9. An alignment film, characterized by being produced by the method for producing an alignment film according to any one of claims 1 to 8; the alignment film (20) comprises a central area (21) and a halo area (22) positioned outside the central area (21), wherein the halo area (22) comprises a first part (221) and a second part (222) which are sequentially arranged along the direction far away from the central area (21); the thickness of the first portion (221) is smaller than that of the central region (21), and the upper surface of the first portion (221) is recessed toward the direction close to the substrate (10); the upper surface of the second portion (222) protrudes in a direction away from the substrate (10); the second portion (222) is located on a third region (13) of the substrate (10), the first portion (221) is located on a second region (12) of the substrate, and a projection of a vertical direction of a boundary of the halo region (22) and the central region (21) is located within the second region (12).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910205041.7A CN109765730B (en) | 2019-03-18 | 2019-03-18 | Alignment film manufacturing method and alignment film |
| PCT/CN2019/079662 WO2020186542A1 (en) | 2019-03-18 | 2019-03-26 | Manufacturing method of alignment film, and alignment film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910205041.7A CN109765730B (en) | 2019-03-18 | 2019-03-18 | Alignment film manufacturing method and alignment film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109765730A CN109765730A (en) | 2019-05-17 |
| CN109765730B true CN109765730B (en) | 2020-08-04 |
Family
ID=66459463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910205041.7A Active CN109765730B (en) | 2019-03-18 | 2019-03-18 | Alignment film manufacturing method and alignment film |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109765730B (en) |
| WO (1) | WO2020186542A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308593B (en) * | 2019-06-12 | 2024-02-27 | 惠科股份有限公司 | Manufacturing method of alignment film |
| CN114005946B (en) * | 2021-09-06 | 2024-01-19 | 上海和辉光电股份有限公司 | Organic film layer structure and preparation method thereof |
| CN114779533A (en) * | 2022-04-11 | 2022-07-22 | Tcl华星光电技术有限公司 | Alignment film and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971382A (en) * | 2003-05-20 | 2007-05-30 | 精工爱普生株式会社 | Method of discharging liquid drops of alignment film, device for discharging liquid drops of alignment film |
| CN203012303U (en) * | 2012-08-01 | 2013-06-19 | 北京京东方光电科技有限公司 | Novel transfer plate |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4609472B2 (en) * | 2007-10-03 | 2011-01-12 | セイコーエプソン株式会社 | Droplet discharge device and method for manufacturing the same |
| CN103091904B (en) * | 2013-01-25 | 2015-05-13 | 合肥京东方光电科技有限公司 | Preparation method of display panel |
| CN103149739B (en) * | 2013-03-05 | 2015-09-02 | 合肥京东方光电科技有限公司 | Alignment films preparation method and system |
| JP2015141299A (en) * | 2014-01-28 | 2015-08-03 | 株式会社ジャパンディスプレイ | liquid crystal display device |
| KR102487276B1 (en) * | 2016-03-21 | 2023-01-12 | 삼성디스플레이 주식회사 | Inkjet printing method and display device manufacturing method using the inkjet printing method |
| CN106918954A (en) * | 2017-05-10 | 2017-07-04 | 京东方科技集团股份有限公司 | A kind of orientation membrane preparation method, display base plate and display panel |
| KR20190018267A (en) * | 2017-08-14 | 2019-02-22 | 주식회사 대호무역상사 | The protect method for outside dot |
-
2019
- 2019-03-18 CN CN201910205041.7A patent/CN109765730B/en active Active
- 2019-03-26 WO PCT/CN2019/079662 patent/WO2020186542A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1971382A (en) * | 2003-05-20 | 2007-05-30 | 精工爱普生株式会社 | Method of discharging liquid drops of alignment film, device for discharging liquid drops of alignment film |
| CN203012303U (en) * | 2012-08-01 | 2013-06-19 | 北京京东方光电科技有限公司 | Novel transfer plate |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020186542A1 (en) | 2020-09-24 |
| CN109765730A (en) | 2019-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109765730B (en) | Alignment film manufacturing method and alignment film | |
| US7262823B2 (en) | Display device and manufacturing method thereof | |
| US20080018841A1 (en) | Methods and apparatus for forming LCD alignment films | |
| US20130065333A1 (en) | Method and apparatus for forming alignment film | |
| CN105457843A (en) | Photoresist coating device and phtoresist coating method | |
| KR101040353B1 (en) | Polaroid film suction apparatus of polaroid film cutting system | |
| CN102385193A (en) | Coating method of liquid crystal alignment film for thin film transistor-liquid crystal display (TFT-LCD) | |
| US6738124B2 (en) | Method for fabricating liquid crystal display panel | |
| US10203563B2 (en) | Forming methods of liquid crystal layers, liquid crystal panels, and liquid crystal dripping devices | |
| CN203444196U (en) | Substrate and display device provided with same | |
| JP2007183548A (en) | Method for forming spacer and method for fabricating liquid crystal display panel | |
| US20130141677A1 (en) | LCD, LCD Substrate and LCD Manufacturing Method | |
| US9144134B2 (en) | Method for coating polyimide on liquid crystal display panel | |
| US20050099576A1 (en) | Liquid crystal display device and method of manufacturing the same | |
| WO2020186561A1 (en) | Method for manufacturing liquid crystal display panel | |
| JP2015166817A (en) | Liquid crystal display device and liquid crystal display device manufacturing method | |
| KR20040077072A (en) | Apparatus for forming alignment film of liquid crystal display device and forming method thereof using the same | |
| WO2016061834A1 (en) | Method and apparatus for coating polyimide | |
| US8647529B2 (en) | Liquid crystal drop apparatus for dropping liquid crytal using an electric field wherein a nozzle is arranged between a liquid crystal container and an electrode and an extending direction of the nozzle is perpendicular to a surface of the electrode | |
| KR100919204B1 (en) | Apparatus for forming alignment film of liquid crystal display device and forming method thereof using the same | |
| KR101276748B1 (en) | liquid crystal spray device for liquid crystal display device and liquid crystal layer formative method using thereof | |
| WO2018205339A1 (en) | Method and device for releasing film stress of array substrate | |
| CN109976017B (en) | Display panel and manufacturing method thereof | |
| US11592714B2 (en) | Method of coating polyimide film and method of fabricating display panel using same | |
| US8970814B2 (en) | Liquid crystal display device and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |